BSAC Sports Mixed Gas


BSAC 50mtr Trimix Diving Course


This course introduces divers to BSAC mixed gas(Trimix) diving using open circuit dive equipment. It teaches experienced divers to use mixed gas to expand their current skills to be able to dive a maximum depth of 50 metres using the most appropriate gas mix. The course uses gas mixes of oxygen greater than or equal to 20% and helium less than or equal to 30%.

Entry requirement
This course is open to all BSAC Sports Divers (or equivalent) with depth qualification to 35 meters with 60 logged dives. Also must hold an Advanced Nitrox or Accelerated Decompression Procedures (or equivalent).

This is a three day course, day 1 is theory and a skills dive, followed by day 2 a deep dive and day 3 a deep dive.


  • Course Pack
  • Instruction

Not Included

  • Dive Equipment
  • Dive Site Entries (if applicable)
  • All Gases (including share of instructors Trimix bill)


£450 per person – Deposit now of £100 – Balance due 21days before course start date.


  • National Diving & Activity Center in Chepstow
  • The Sea
  • One of my Dive Trips


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